Motor-Side Connection Of The Holding Brake - Siemens SIMOTICS S-1FG1 Operating Instructions Manual

Description
2.7 Mounting and options
NOTICE
Faulty brake function due to inadmissible wear
Inadmissible wear means that the braking function can no longer be guaranteed.
• Comply with the predefined emergency stop characteristics.
• Avoid repeated brief acceleration of the motor against a holding brake that is still closed.
Principle of operation
The holding brake operates according to the closed-circuit principle. It brakes when the
current is interrupted and holds the motor.
When power is applied to the brake, it is opened and the motor is free to rotate.
When the power fails or an emergency stop is issued, the motor is braked from its actual
speed down to standstill.
Note
Forbidden areas of application of the holding brake
The holding brake must not be used in hazardous areas or in areas subject to firedamp.
Note
Subsequent conversion of motors with or without a holding brake is not possible.
Motors with a holding brake are longer by the installation space required for the holding
brake.
Setting up the brake
The rated voltage of the holding brake is 24 V DC +/- 10%. Voltages outside this tolerance
range can cause faults.
When setting up machines and systems (jog mode), observe the technical data for the
holding brakes in the "Configuring guide" chapter in Catalog D41.
2.7.3.2

Motor-side connection of the holding brake

The holding brake in the motor is intended for direct connection to the SINAMICS converter
using the MOTION CONNECT power cable with an integrated brake connection cable, see
Chapter "Selecting and connecting the cables (Page 116) "
Since safe electrical isolation from the motor winding is guaranteed for the brake cable in the
motor and the power cable is designed as an enforced insulation, no further protection
circuits are required in this case.
32
Consider the operating times of the brakes and the relays in the drive control and
enable.
SIMOTICS S-1FG1 servo geared motor
Operating Instructions, 07/2019, A5E47360747B AA